Throat-damper



(No Modei.)

G. J. WADSWORTH.

THROAT DAMPER.

No. 419,233. Patented Jan. 14,1890.

N, PETERS. Pmwmha m her. washmgton. I)v c.

UNITED STATES PATENT OFFICE.

CHESTER J. IVADSYVORTH, OF CLEVELAND, OHIO.

TH ROAT-DAM PER.

SPECIFICATION forming part of Letters Patent No. 419,233, dated January14, 1890.

Application filed May 16,1889. Serial No. 811,067. (No model.)

To all whmn it 772/(LZ/ concern.-

Be it known that I, CHESTER J. ADS- WORTH, a citizen of the UnitedStates, residing at Cleveland, in the county of Cuyahoga and State ofOhio, have invented certain new and useful Improvements inThroat-Dampers, of which the following is a specification.

This invention relates to certain improvements in dampers forchimney-throats; and it consists in apeculiarly-constructed damperlocated in the throat of the chimney.

These improvements are constructed, com bined, and arranged to operatesubstantially as hereinafter described, and pointed out in the claim andillustrated in the accompanying drawings, in which- Figure 1 is a frontview of a fire-grate having my improvements embodied therein. Fig. 2 isa vertical section of the same. Fig. 3 is a front View of thechimney-damper. Fig. 4 is a vertical section of the same, both enlarged.Fig. 5 is a View of a portion of one of the wings of the damper, showingpart of sliding bar and means of opening and closing the damper.

A represents an open-work grate-front for covering the jambs and lintelof a fire-place.

B is a fire-basket set in the usual manner in a chimney-place C. Thelower front of the grate is closed by doors D, having suitabledraft-dampers d.

In the throat of the chimney I place a damper of peculiar construct-ion,as follows: I is a frame completely filling the throat leading from thefire-place into the chimney C.

This frame is partitioned off into a number of openings by bars 2' i. Inthe lower side of said frame I is fitted a sliding slotted bar J. K Kare wings having journals or trunnions k 70 on two of their corners, bywhich they are attached to the top and lower sides of the frame I, saidtrunnions being set in holes made for that purpose, and upon which thewings are made to turn, the lower trunnions passing through the slots 3'j of the bar J. The lower side of each wing K is provided with an offset712- next to the lower trunnions, and said offset stands between twopins p p, fixed in the upper side of the said bar J. The bar J is alsoprovided with an arm J by which it may be pushed for sliding it foropening or closing the wings.

This damper is readily opened or closed by means of a poker pushing uponJ I claim The combination, in a fire-place, of a throatdamper consistingof a frame I, divided by bars 2' i, the wings K K, coveringthe openingsbetween said bars and provided with trunnions k 70, fitted to turn insaid frame I, and the slotted sliding bar J, having pins p 2) cmbracingthe offsets m on said wings, all constructed and arranged to operatesubstantially as described, and for the purpose set forth.

CHESTER J. ADSVVORTH.

\Vitnesses:

GEO. W. TIBBITTS, JAY E. LATIMER.

